Question

The area of a trapezium is expressed as 8r - 15x-2
If its height is (x - 2), find the sum of its parallel
sides.​

Answer 1

let sum of parralel lines be =y

area= 1/2 × sum of parallel lines ×height

8r-15x-2= y× (x-2 )

-2 +2-y = 15x+ x- 8r

-y = 16x-8r

y= 16x-8r